There are many harms to the close relatives of the sheep
For many years, the rams were not exchanged and the mating of close relatives was very serious. Most sheep are the natural development of the original group. Although these sheep breed rams and ewes year after year, they are eliminated year after year. However, due to the formation of a closed group, the blood relationship between the breeding sheep is closely related, and the relative coefficient of the sheep is continuously increasing. The fate of the "two drops and one high" is caused by the mating of sheep. Namely: sheep performance decline, variety degradation, stunting, growth retardation, meat production and hair production decreased by 50%; reproduction rate decreased, due to inbreeding caused by freak, abortion, fetal, stillbirth, sheep only disease resistance Poor force, high mortality. These problems must cause the sheep farmers to attach great importance to take measures to seriously solve them. There are three main methods: The first is to exchange rams in due course. After two years of continuous use in a flock of rams, the rams in the same flock of other flock were exchanged to achieve the purpose of reducing the inbreeding mating coefficient. The second is to breed rams separately. In the season of breeding, artificial rams or artificial insemination are performed according to the rams whose kinship is far away. Adopting these two methods can not only avoid inbreeding, but also control the ewes lambing time and extend the useful life of the ram. Third, in rural areas with large numbers of sheep and concentrated rural areas, an artificial insemination station for sheep should be established. The insemination station should establish a file system, including breeding rams, ewe breeding registration forms, lamb registration forms, and offspring measurement records. With these archives, the kinship is clear, and the seeds can be selected and matched in a planned manner to avoid inbreeding. Dietary supplements take vitamins, minerals and extracts with relatively clear structure-activity relationship as the main raw materials, and supplement the necessary nutrients and biologically active substances for the human body through oral intake to achieve the purpose of improving the body's health and reducing the risk of disease. Available in concentrated forms such as doses or capsules. Foods in traditional form with added nutrients or biologically active substances. Dietary supplement,New Dietary Ingredient,Dietary Supplement Product,Food Supplements YT(Xi'an) Biochem Co., Ltd. , https://www.ytherblifes.com